BLOOD CARDIOVASCULAR SYSTEM LYMPHOID ORGANS
LYMPH NODES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What do the valves in the lymphatic system do?
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Keep the lymph moving in either direction
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Stop the fluid from moving backward and keep it moving one way
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Separate the blood and the lymph
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There are no valves in the lymphatic vessels
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Explanation:
Detailed explanation-1: -The wall of the lymph capillary is composed of endothelium in which the simple squamous cells overlap to form a simple one-way valve. This arrangement permits fluid to enter the capillary but prevents lymph from leaving the vessel.
Detailed explanation-2: -To ensure that lymph does not flow backward, collecting lymphatic vessels and larger lymphatic vessels have one-way valves. These valves are not present in the lymphatic capillaries.
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